the spider monster

The Spider Monster was a 30-foot tall amalgamation of human and rodent remains. creature loosely resembled the Mind Flayer's 'shadow monster' form, possessing an elongated flame-shaped head, and six branching spider-like legs. It had a highly irregular surface, with bones belonging to the creature's victims jutting out from various parts of its body. The creature was equipped with several prehensile tentacles used for offensive attacks, one of which extended from the monster's mouth. The maw of the creature was filled with circular rows of jagged "teeth." Despite posing a formidable threat, the creature was clumsily designed and thrown-together by Vecna, with some of its limbs being completely dysfunctional.